|
(11) | EP 0 845 214 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
|
|
|
|
|||||||||||||||||||||||
|
||||||||||||||||||||||||
| (54) | Apparatus for forming sheets of material having a uniform thickness and cutting individual portions therefrom |
| (57) An apparatus for forming a sheet of material from a supply of the material, and for
cutting portions of the material from the sheet of material, the apparatus including:
a support, first and second rotatable rollers positioned adjacent each other to form
a gap therebetween for receiving the material from the supply and outputting a sheet
of the material, a drive for rotating the rollers and a cutter secured to the support
and including an elongated member having an exterior surface configured to cut individual
portions of the material from the sheet of material, the elongated member having opposite
ends and a central portion; characterized by: the cutter being secured to the support
with the central portion of the elongated member pressed against the front roller
for cutting the sheet of material into the individual portions, the opposite ends
of the elongated member each being journalled in a bearing and having a lift force
applied thereagainst to press the central portion of the elongated member against
the front roller, and wherein a bending moment is applied to each of the opposite
ends of the elongated member to induce a camber in the elongated member and provide
a uniform pressure across the interface of the central portion thereof and the front
roller; whereby bowing of the cutter and resultant reduction in pressure between the
elongated member and front roller is prevented. |